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  <title>Prepares for an Extended Service Request</title>

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</div><hr /><div id="function.yaz-es" class="refentry">
 <div class="refnamediv">
  <h1 class="refname">yaz_es</h1>
  <p class="verinfo">(PECL yaz &gt;= 0.9.0)</p><p class="refpurpose"><span class="refname">yaz_es</span> &mdash; <span class="dc-title">
   Prepares for an Extended Service Request
  </span></p>

 </div>
 <div class="refsect1 description" id="refsect1-function.yaz-es-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="type"><span class="type void">void</span></span> <span class="methodname"><strong>yaz_es</strong></span>
    ( <span class="methodparam">
    <span class="type">resource</span> <code class="parameter">$id</code>
   </span>
   , <span class="methodparam">
    <span class="type">string</span> <code class="parameter">$type</code>
   </span>
   , <span class="methodparam">
    <span class="type">array</span> <code class="parameter">$args</code>
   </span>
   )</div>

  <p class="para rdfs-comment">
   This function prepares for an Extended Service Request.
   Extended Services is family of various Z39.50 facilities, such
   as Record Update, Item Order, Database administration etc.
  </p>
  <blockquote class="note"><p><strong class="note">Note</strong>: 
   <p class="para">
    Many Z39.50 Servers do not support Extended Services.
   </p>
  </p></blockquote>
  <p class="para">
   The <span class="function"><strong>yaz_es()</strong></span> creates an Extended Service Request
   packages and puts it into a queue of operations.
   Use <span class="function"><a href="function.yaz-wait.html" class="function">yaz_wait()</a></span> to send the request(s) to the server.
   After completion of <span class="function"><a href="function.yaz-wait.html" class="function">yaz_wait()</a></span> the result of
   the Extended Service operation should be expected with
   a call to <span class="function"><a href="function.yaz-es-result.html" class="function">yaz_es_result()</a></span>.
  </p>
 </div>

 <div class="refsect1 parameters" id="refsect1-function.yaz-es-parameters">
  <h3 class="title">参数</h3>
  <p class="para">
   <dl>

    
     <dt>
<em><code class="parameter">id</code></em></dt>

     <dd>

      <p class="para">
       The connection resource returned by <span class="function"><a href="function.yaz-connect.html" class="function">yaz_connect()</a></span>.
      </p>
     </dd>

    
    
     <dt>
<em><code class="parameter">type</code></em></dt>

     <dd>

      <p class="para">
       A string which represents the type of the Extended Service: 
       <em>itemorder</em> (Item Order),
       <em>create</em> (Create Database),
       <em>drop</em> (Drop Database),
       <em>commit</em> (Commit Operation),
       <em>update</em> (Update Record),
       <em>xmlupdate</em> (XML Update).
       Each type is specified in the following section.
      </p>
     </dd>

    

    
     <dt>
<em><code class="parameter">args</code></em></dt>

     <dd>

      <p class="para">
       An array with extended service options plus
       package specific options. The options are identical to
       those offered in the C API of ZOOM C. Refer to
       the ZOOM <a href="http://www.indexdata.dk/yaz/doc/zoom.tkl" class="link external">&raquo;&nbsp;Extended Services</a>.
      </p>
     </dd>

    
   </dl>

  </p>

 </div>


 <div class="refsect1 returnvalues" id="refsect1-function.yaz-es-returnvalues">
  <h3 class="title">返回值</h3>
  <p class="para">
   没有返回值。
  </p>
 </div>


 <div class="refsect1 examples" id="refsect1-function.yaz-es-examples">
  <h3 class="title">范例</h3>
  <div class="example" id="example-4583">
   <p><strong>Example #1 Record Update</strong></p>
   <div class="example-contents">
<div class="phpcode"><code><span style="color: #000000">
<span style="color: #0000BB">&lt;?php<br />$con&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">yaz_connect</span><span style="color: #007700">(</span><span style="color: #DD0000">"myhost/database"</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">$args&nbsp;</span><span style="color: #007700">=&nbsp;array&nbsp;(<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">"record"&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">"&lt;gils&gt;&lt;title&gt;some&nbsp;title&lt;/title&gt;&lt;/gils&gt;"</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">"syntax"&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">"xml"</span><span style="color: #007700">,<br />&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="color: #DD0000">"action"&nbsp;</span><span style="color: #007700">=&gt;&nbsp;</span><span style="color: #DD0000">"specialUpdate"<br /></span><span style="color: #007700">);<br /></span><span style="color: #0000BB">yaz_es</span><span style="color: #007700">(</span><span style="color: #0000BB">$con</span><span style="color: #007700">,&nbsp;</span><span style="color: #DD0000">"update"</span><span style="color: #007700">,&nbsp;</span><span style="color: #0000BB">$args</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">yaz_wait</span><span style="color: #007700">();<br /></span><span style="color: #0000BB">$result&nbsp;</span><span style="color: #007700">=&nbsp;</span><span style="color: #0000BB">yaz_es_result</span><span style="color: #007700">(</span><span style="color: #0000BB">$id</span><span style="color: #007700">);<br /></span><span style="color: #0000BB">?&gt;</span>
</span>
</code></div>
   </div>

   </div>
 </div>


 <div class="refsect1 seealso" id="refsect1-function.yaz-es-seealso">
  <h3 class="title">参见</h3>
  <p class="para">
   <ul class="simplelist">
    <li class="member"><span class="function"><a href="function.yaz-es-result.html" class="function" rel="rdfs-seeAlso">yaz_es_result()</a> - Inspects Extended Services Result</span></li>
   </ul>
  </p>
 </div>


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